Who has been buying Wacul.Inc stock?

5 distinct investors have filed 2 disclosed large-shareholding filings in Wacul.Inc (4173), most recently on 2025-06-19. Each filer, their role, the number of shares and the price at filing are listed in the table on this page.

How many insider filings does Wacul.Inc have?

Wacul.Inc has 2 buy-side and 23 sell-side disclosures on record, covering ¥3.7B ($24.1M) in total reported value, spanning 2021-04-15 to 2025-06-19.

Where does StockDrifts get Wacul.Inc insider data?

From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.

Do insider buys in Japanese stocks predict returns?

Not uniformly. StockDrifts scored 101,000+ Japanese large-shareholding filings on fixed 12-month forward returns and found the predictive power concentrated in specific filer types and filing patterns rather than spread evenly across all disclosures.

Wacul.Inc 4173

Company

株式会社WACULWacul.Inc

Investors

Buys

Total Value

¥3.7B ($24.1M)

Avg Return

+0.20%

Last Filing

2025-06-19

Wacul.Inc (4173) has 2 disclosed large-shareholding filings and 23 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥3.7B ($24.1M) in reported transaction value. The earliest filing StockDrifts holds for Wacul.Inc is dated 2021-04-15; the most recent is 2025-06-19. All of it is parsed from EDINET large-shareholding (5%+) reports, the official disclosure system operated by the Financial Services Agency (Japan). Across these filings the average return since disclosure is +0.20%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

Date	Type	Source	Insider	Purpose	Shares	Price at filing	Return	Value
2025-06-19	SELL	subscription	株式会社TBSホールディングス TBS HOLDINGS, INC.	activist	7.8M	¥499	-0.2%	¥3.5B ($22.3M)
2025-06-05	SELL	subscription	垣内勇威 Yui Kakiuchi	strategic	0	¥499	-0.2%	¥481M ($3.1M)
2025-06-05	SELL	subscription	大淵亮平 Ryohei Obuchi	strategic	0	¥499	-0.2%	¥709M ($4.6M)
2025-05-30	BUY	subscription	株式会社TBSホールディングス TBS HOLDINGS, INC.	activist	7.0M	¥498	+0.4%	¥3.5B ($22.5M)
2025-05-23	SELL	unknown	楽天証券株式会社 Rakuten Securities Inc	other	193.7K	¥500	+0.0%	¥148M ($954K)
2025-05-09	BUY	unknown	楽天証券株式会社 Rakuten Securities Inc	other	489.6K	¥500	+0.0%	¥245M ($1.6M)
2025-05-01	SELL	subscription	垣内勇威 Yui Kakiuchi	strategic	964.2K	¥501	+0.2%	¥6M ($42K)
2025-05-01	SELL	subscription	大淵亮平 Ryohei Obuchi	strategic	1.4M	¥501	+0.2%	¥29M ($190K)
2025-05-01	SELL	subscription	大淵亮平 Ryohei Obuchi	strategic	1.4M	¥501	+0.2%	¥9M ($58K)
2025-05-01	SELL	subscription	垣内勇威 Yui Kakiuchi	strategic	964.2K	¥501	+0.2%	¥31M ($198K)
2024-10-18	SELL	Market Buy	ジャフコグループ株式会社 JAFCO Group Co., Ltd.	passive	319.3K	¥339	-47.5%	¥26M ($169K)
2024-03-13	SELL	Market Buy	ジャフコグループ株式会社 JAFCO Group Co., Ltd.	passive	396.1K	¥559	+10.6%	¥57M ($368K)
2023-06-20	SELL	Market Buy	ジャフコグループ株式会社 JAFCO Group Co., Ltd.	passive	495.5K	¥739	+32.3%	¥174M ($1.1M)
2023-06-05	SELL	Market Buy	ジャフコグループ株式会社 JAFCO Group Co., Ltd.	passive	731.9K	¥600	+16.7%	¥60M ($388K)
2023-05-16	SELL	Market Buy	ジャフコグループ株式会社 JAFCO Group Co., Ltd.	passive	831.9K	¥631	+20.8%	¥100M ($648K)
2022-10-13	SELL	Market Buy	ジャフコグループ株式会社 JAFCO Group Co., Ltd.	passive	987.1K	¥518	+3.5%	¥81M ($520K)
2022-09-21	SELL	Market Buy	ジャフコグループ株式会社 JAFCO Group Co., Ltd.	passive	1.1M	¥669	+25.3%	¥51M ($330K)
2022-09-13	SELL	Market Buy	ジャフコグループ株式会社 JAFCO Group Co., Ltd.	passive	1.2M	¥753	+33.6%	¥53M ($344K)
2022-03-30	SELL	Market Buy	ジャフコグループ株式会社 JAFCO Group Co., Ltd.	passive	1.3M	¥1,015	+50.7%	¥305M ($2.0M)
2022-03-04	SELL	Market Buy	ジャフコグループ株式会社 JAFCO Group Co., Ltd.	passive	1.6M	¥854	+41.5%	¥171M ($1.1M)
2021-10-01	SELL	Market Buy	ジャフコグループ株式会社 JAFCO Group Co., Ltd.	passive	1.8M	¥2,096	+76.2%	¥210M ($1.4M)
2021-09-21	SELL	Market Buy	ジャフコグループ株式会社 JAFCO Group Co., Ltd.	passive	1.9M	¥2,055	+75.7%	¥206M ($1.3M)
2021-07-09	SELL	unknown	垣内勇威 Yui Kakiuchi	strategic	964.2K	¥2,600	+80.8%	¥55M ($355K)
2021-05-07	SELL	Market Buy	ジャフコグループ株式会社 JAFCO Group Co., Ltd.	passive	2.0M	¥2,755	+81.8%	¥549M ($3.5M)
2021-04-15	SELL	unknown	大淵亮平 Ryohei Obuchi	strategic	1.4M	¥3,050	+83.6%	¥90M ($582K)

Frequently asked questions

Who has been buying Wacul.Inc stock?: 5 distinct investors have filed 2 disclosed large-shareholding filings in Wacul.Inc (4173), most recently on 2025-06-19. Each filer, their role, the number of shares and the price at filing are listed in the table on this page.
How many insider filings does Wacul.Inc have?: Wacul.Inc has 2 buy-side and 23 sell-side disclosures on record, covering ¥3.7B ($24.1M) in total reported value, spanning 2021-04-15 to 2025-06-19.
Where does StockDrifts get Wacul.Inc insider data?: From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.
Do insider buys in Japanese stocks predict returns?: Not uniformly. StockDrifts scored 101,000+ Japanese large-shareholding filings on fixed 12-month forward returns and found the predictive power concentrated in specific filer types and filing patterns rather than spread evenly across all disclosures.

Source filings

Every trade listed above is disclosed in EDINET large-shareholding (5%+) reports, filed with the Financial Services Agency (Japan). View the original EDINET filings for Wacul.Inc. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.